Talvez deva tentar algumas variações de ortografia:
computer code » computer model (Expandir a Pesquisa), computer models (Expandir a Pesquisa), computer crime (Expandir a Pesquisa)
natalia comp » natalia campos (Expandir a Pesquisa), natalia costa (Expandir a Pesquisa), natalia ceppi (Expandir a Pesquisa)
acm computer » a computer (Expandir a Pesquisa), um computer (Expandir a Pesquisa), uym computer (Expandir a Pesquisa)
j natalia » _ natalia (Expandir a Pesquisa)
comp can » camp can (Expandir a Pesquisa), chimp can (Expandir a Pesquisa), clamp can (Expandir a Pesquisa)
can near » can never (Expandir a Pesquisa), can new (Expandir a Pesquisa)
clamp ar » clamp a (Expandir a Pesquisa), clamp _ (Expandir a Pesquisa), clamp j (Expandir a Pesquisa)
ar newts » can newts (Expandir a Pesquisa), _ newts (Expandir a Pesquisa), war news (Expandir a Pesquisa)
code now » code new (Expandir a Pesquisa), code non (Expandir a Pesquisa), code noir (Expandir a Pesquisa)
a clamp » dna clamp (Expandir a Pesquisa), a claims (Expandir a Pesquisa)
a acm » ad acm (Expandir a Pesquisa), _ acm (Expandir a Pesquisa), a aco (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(((( j natalia comp can near ) OR ( j a clamp ar newts ))) OR ( a acm computer code now ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j natalia comp can near ) OR ( j a clamp ar newts ))) OR ( a acm computer code now ))*.